<?php
/**
 * Smarty Internal Plugin Compile Function_Call
 *
 * Compiles the calls of user defined tags defined by {function}
 *
 * @package Smarty
 * @subpackage Compiler
 * @author Uwe Tews
 */

/**
 * Smarty Internal Plugin Compile Function_Call Class
 *
 * @package Smarty
 * @subpackage Compiler
 */
class Smarty_Internal_Compile_Call extends Smarty_Internal_CompileBase {

	/**
	 * Attribute definition: Overwrites base class.
	 *
	 * @var array
	 * @see Smarty_Internal_CompileBase
	 */
	public $required_attributes = array('name');
	/**
	 * Attribute definition: Overwrites base class.
	 *
	 * @var array
	 * @see Smarty_Internal_CompileBase
	 */
	public $shorttag_order = array('name');
	/**
	 * Attribute definition: Overwrites base class.
	 *
	 * @var array
	 * @see Smarty_Internal_CompileBase
	 */
	public $optional_attributes = array('_any');

	/**
	 * Compiles the calls of user defined tags defined by {function}
	 *
	 * @param array  $args      array with attributes from parser
	 * @param object $compiler  compiler object
	 * @param array  $parameter array with compilation parameter
	 * @return string compiled code
	 */
	public function compile($args, $compiler)
	{
		// check and get attributes
		$_attr = $this->getAttributes($compiler, $args);
		// save possible attributes
		if (isset($_attr['assign'])) {
			// output will be stored in a smarty variable instead of beind displayed
			$_assign = $_attr['assign'];
		}
		$_name = $_attr['name'];
		if ($compiler->compiles_template_function) {
			$compiler->called_functions[] = trim($_name, "'\"");
		}
		unset($_attr['name'], $_attr['assign'], $_attr['nocache']);
		// set flag (compiled code of {function} must be included in cache file
		if ($compiler->nocache || $compiler->tag_nocache) {
			$_nocache = 'true';
		} else {
			$_nocache = 'false';
		}
		$_paramsArray = array();
		foreach ($_attr as $_key => $_value) {
			if (is_int($_key)) {
				$_paramsArray[] = "$_key=>$_value";
			} else {
				$_paramsArray[] = "'$_key'=>$_value";
			}
		}
		if (isset($compiler->template->properties['function'][$_name]['parameter'])) {
			foreach ($compiler->template->properties['function'][$_name]['parameter'] as $_key => $_value) {
				if (!isset($_attr[$_key])) {
					if (is_int($_key)) {
						$_paramsArray[] = "$_key=>$_value";
					} else {
						$_paramsArray[] = "'$_key'=>$_value";
					}
				}
			}
		} elseif (isset($compiler->smarty->template_functions[$_name]['parameter'])) {
			foreach ($compiler->smarty->template_functions[$_name]['parameter'] as $_key => $_value) {
				if (!isset($_attr[$_key])) {
					if (is_int($_key)) {
						$_paramsArray[] = "$_key=>$_value";
					} else {
						$_paramsArray[] = "'$_key'=>$_value";
					}
				}
			}
		}
		//varibale name?
		if (!(strpos($_name, '$') === false)) {
			$call_cache = $_name;
			$call_function = '$tmp = "smarty_template_function_".' . $_name . '; $tmp';
		} else {
			$_name = trim($_name, "'\"");
			$call_cache = "'{$_name}'";
			$call_function = 'smarty_template_function_' . $_name;
		}

		$_params = 'array(' . implode(",", $_paramsArray) . ')';
		$_hash = str_replace('-', '_', $compiler->template->properties['nocache_hash']);
		// was there an assign attribute
		if (isset($_assign)) {
			if ($compiler->template->caching) {
				$_output = "<?php ob_start(); Smarty_Internal_Function_Call_Handler::call ({$call_cache},\$_smarty_tpl,{$_params},'{$_hash}',{$_nocache}); \$_smarty_tpl->assign({$_assign}, ob_get_clean());?>\n";
			} else {
				$_output = "<?php ob_start(); {$call_function}(\$_smarty_tpl,{$_params}); \$_smarty_tpl->assign({$_assign}, ob_get_clean());?>\n";
			}
		} else {
			if ($compiler->template->caching) {
				$_output = "<?php Smarty_Internal_Function_Call_Handler::call ({$call_cache},\$_smarty_tpl,{$_params},'{$_hash}',{$_nocache});?>\n";
			} else {
				$_output = "<?php {$call_function}(\$_smarty_tpl,{$_params});?>\n";
			}
		}
		return $_output;
	}

}

?>